Data of "Testing sea urchin and green sea turtle consumption of the allelopathic macroalga <i>Galaxaura divaricata</i>"

This dataset documents the feeding ratios of the green sea turtle (<i>Chelonia mydas</i>) and five species of sea urchins (<i>Diadema setosum</i>, <i>Echinometra mathaei</i>, <i>Diadema savignyi</i>, <i>Echinothrix calamaris</i>, and <i>Tripneustes gratilla</i>) on two different red macroalgae (<i>Galaxaura divaricata</i> and <i>Gracilaria edulis</i>) conducted in the Dongsha Atoll Research Station during the summer of 2016. In experiments targeting green sea turtles as grazers, each individual green sea turtle was separately tested for a) feeding exclusively on <i>Galaxaura divaricata</i>, b) feeding exclusively on <i>Gracilaria edulis</i>, c) feeding simultaneously on a mixed diet of both red macroalgae species, and d) feeding simultaneously on an unmixed diet of both red macroalgae species. In experiments focusing on sea urchins as grazers, each sea urchin individual was tested separately for its feeding ratio on a) <i>Galaxaura divaricata</i> only, b) <i>Gracilaria edulis</i> only, and c) on both of these two red macroalgae simultaneously. We calculated the intake ratios based on weight changes of red macroalgae. The R codes for model fittings are provided. All details were documented in the article "Testing sea urchin and green sea turtle consumption of the allelopathic macroalga <i>Galaxaura divaricata</i>" by Nieder et al.本数据集记录了2016年夏季于东沙环礁研究站开展的实验中，绿海龟（green sea turtle，*Chelonia mydas*）与5种海胆（sea urchins，*Diadema setosum*、*Echinometra mathaei*、*Diadema savignyi*、*Echinothrix calamaris*、*Tripneustes gratilla*）对两种大型红藻（red macroalgae，*Galaxaura divaricata*与*Gracilaria edulis*）的取食比例。在以绿海龟为啃食者的实验中，每只绿海龟分别接受以下4组处理：a）仅以*Galaxaura divaricata*为食，b）仅以*Gracilaria edulis*为食，c）同时取食两种红藻的混合日粮，d）同时取食两种红藻的非混合日粮。在以海胆为啃食者的实验中，每只海胆分别接受以下3组处理：a）仅取食*Galaxaura divaricata*，b）仅取食*Gracilaria edulis*，c）同时取食上述两种红藻。本研究基于大型红藻的重量变化计算取食比例，数据集附带用于模型拟合的R代码。所有实验细节已记载于Nieder等人发表的论文《检验海胆与绿海龟对化感大型藻类*Galaxaura divaricata*的取食研究》中。